Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 4 22.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 04/23/2023   11:01:13   (   0.13,-137.63) (  -0.51,-134.85)  317.30                80
 04/24/2023   23:26:25   (  -0.11,-138.33) (  -0.55,-140.30)  224.36                80
 04/25/2023   23:05:24   (  -0.13,-138.81) (   0.56,-135.87)  335.57                80
 04/27/2023   11:30:26   (   0.11,-139.57) (   0.50,-141.28)  194.53                80
 04/28/2023   11:09:25   (   0.12,-140.05) (  -0.61,-136.85)  365.18                80
 04/29/2023   23:34:37   (  -0.10,-140.74) (  -0.43,-142.30)  177.24                80
 04/30/2023   23:13:34   (  -0.12,-141.21) (   0.62,-137.86)  382.34                80
 05/02/2023   11:38:38   (   0.10,-141.97) (   0.37,-143.28)  148.54                80
 05/03/2023   11:17:35   (   0.11,-142.44) (  -0.69,-138.84)  410.65                80
 05/04/2023   23:42:47   (  -0.08,-143.12) (  -0.33,-144.29)  132.97                80
 05/05/2023   23:21:45   (  -0.10,-143.58) (   0.74,-139.85)  425.64                80